I just created my first Google App Engines app called "Hello World". This was the first lesson in the Getting Started tutorial on the Google App Engine. I tested it on my computer (I use Windows XP), and it worked just fine - whenever I opened a new window in my web browser (FireFox), I could always see this phrase Hello, world!!!, which was proof that it It worked.
Before I created it, I did not know how to save the notepad file as a file .py. I asked this question here and quickly got an answer.
However, later I received a comment on my question, which said the following:
"App Engine does not support Python 2.6. You are more lucky with the release of Python 2.5. It's sad, but true."
So I uninstalled Python 2.6.4 and installed Python 2.5.4. I also uninstalled the Google App Engine Launcher and reinstalled it. While I was installing it, a window popped up saying that all the necessary prerequisites were found on my computer.
However, when I added my existing application and wanted to launch it using the App Engine Launcher, a message appeared saying that this is so:
"Python interpreter None found. Cannot start project E: \ python \ HelloWorld. Please confirm these values in your settings, or take appropriate measures to fix this (for example, install Python)."
I tried to uninstall my application and re-do it - to no avail. What should I do?